Suspension points
6.2 Electrical connection
The unit must be fully isolated from the mains power supply and secured against being switched on again be-
fore all maintenance and installation work or before opening the terminal compartment!
– The electrical connection and commissioning must only be carried out by an authorised, qualified electrician as spe-
cified in the motor terminal box and the attached wiring diagrams.
– The relevant standards, safety regulations (e.g. DIN VDE 0100) and the technical connection regulations of the energy
supply company must be observed!
– An all-pole mains switch / isolator, with at least a 3 mm contact opening (DIN EN 60335-1) is already mounted for
types ..WW (Fig. 4). An additional isolator shall be provided for types ..EH before the electric heater.
(Fig. 6).
– The network configuration, voltage and frequency must be consistent with the information on the type plate.
– When inserting the electrical cables make sure that no water can come into the unit.
– Bushings on the side of the terminal box are to be used for entry of connecting cables. The cables must be put
through the bushings ensuring the electrical protection class is maintained.
– Terminal markings correspond to the wiring diagram in the terminal box.
– When connecting all connectors in the terminal box, it is necessary to take care not to damage the connecting tongues.
14
Fresh Air Boxes
Installation and Operating Instructions
R
EVISIONS-
Ö
FFNUNG
(BEIDSEITIG)
Fig.2
Installation positions
(View to air outlet side)
Type B L O
ALB 220/4/50/30.. 652 1045 123
ALB 280/4/60/35.. 750 1085 153
ATTENTION
UK
Fig.3
L
B
O
59
59
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